Bolt and nut lock



June v8 1926. 7 1,588,310

' C. R. CONKLIN BOLT AND NUT Lock Filed Nov. 10, 1925 INVENTOR.@ZZZn/r/z'a Patented June 8, 1926.

vuru'rsn STATES PATENT OFFICE;

CHARLES R. CONKLIN, 0F sPRINGFInnD, MISSOURI, Assrenon enemy-neurons:

HUNnaEn'rHs TO ANDREW JACKSON coNKLIn, or SPRIN FIE D, MISSOURI.

BOLT AND NUT LOCK.

Application filed November This inventionrelates to new and usefulimprovements in bolt. and nut locks and more particularly to a lockwhich positively locks the bolt and'nut together. v

The primary object of the invention is to provide a device of thischaracter which will overcome the many difliculties now experienced indevices of this typeand which will permit of ready application andassurance against disengagement,

A further object of the invention resides in providing a device whichcombines a locking key with a locking ring or washer for retaining thekey in place in engagement with the threads of the bolt, the lockingwasher or ring being positively engaged with the nut.

A still further object resides in providing a device which is simple anddurable in construction, inexpensive to manufacture, and one which willbe very efficient in use.

With these and other objects in view, my invention consists in the novelfeatures of construction, combination, and arrangement of parts as willbe hereinafter referred to and more particularly pointed out in thespecification and claims.

In the accompanying drawing part of this application,

Figure 1 is an elevation, partly in section showing my deviceeffectively app-lied to use,

Figure 2 is an end elevation thereof, partly in section,

Figure 3 is a transverse sectional view illustrating the device, I

Figure 4 is a detail perspective View illustrating the locking key, and

Figure 5 is a similar view illustrating the lockin ring or washer.

In escribing the invention, I shall refer to the drawings in whichsimilar reference characters designate corresponding parts throughoutthe several views and in which 1 designates a bolt of the usual or anypreferred character having a threaded portion 2 to which is adapted tobe applied the nut 3. In one face of the nut 3 surrounding the opening 4is an annular seat 5 and a longitudinal slot or key-way 6 is provided inthe nut which extends from the bottom wall of the seat approximately tothe outer face of the nut.

A locking key 7 is located in the key-way or slot 6 and it is providedwith a'number of teeth or threaded portions 8 which are forming a 10,1925. SrialfNo. 8,236.

of a steeper pitch than thethrea ds nut and bolt sothat said teeth orthreaded port ons will bite into the'bottom of the threads of the bolt.One end ofthe locking key -,7 is beveled as at 7 and its other end isprovided witha reduced stem; 7.

A split ring of spring steel is lo catedv in the seat 5 and it is ,provi ded. withianeccentric slot -9 Wh10l1 receives the stem 7 of the 1 key7. A portion of the inner peripheral edge ofthe ring 9 is cut away, asat 10;'toprovide an elastic arm 11 and a shoulder 12 on the inner edgeof the ring; The free end of this arm is provided at the outer edge ofthe ring with a tooth 13 which is adapted to enter one of the notches11* to secure the ring in adjusted positions. The key 7 and" ring 9 aresecured in posit-ion by lugs 14 which are carried by the nut 3 and whichengage the outer face of the ring. The key 7 is held in engagement withthe threads of the bolt by the stem 7 fitting in the slot 9 of the ring9.

Owing to the eccentricity of the slot 9 in the ring 9 and as the stem 7b of the key 7 is located in the slot 9?, the movement of the ring inone direction will move the key inwardly into bolt engaging or active orlooking position. The movement of the ring 9 in the reverse directionwill move the key 7 outwardly away from the bolt or into bolt releasingor inactive position. The nut is applied to the bolt when the key 7 isin an inactive position. After the nut has been 1 turned upon the bolt,the ring 9 is moved in the direction to force the-key into active orbolt engaging position.- Thls may be'done by tapping on the shoulder 12with a punch or any other suitable instrument. 7 The tooth 13 will bmeans of its engagement in one of the note es 11 hold the ring againstacci-v dental movement. I

From this construction as described above, it will be seen that I haveprovided a device which will be positivein the securing of the nut to abolt, thereby removing all possibility of the nut being casually oraccidentally loosened on the bolt.

It will further be seen that I have provided a simple, inexpensive andefiicient means for carrying out the objects of the invention. I

Having thus described my invention what I claim is v 1. In a device ofthe class described, the

combination with a bolt, of a nut having a longitudinal key-Wayintersecting the threaded portion thereof and provided with an annularseat on its outer face surrounding the opening therein a locking keyadapted for introduction into said key-Way, and a locking ring adaptedto be positioned in, the aforesaid seat and having an eccentric slot toreceive the key to secure the key in-locking position.

2. In a devic'eoffthe class described, the combination with a bolt-70f anut provided witlra, longitudinal key-way intersecting the threadsthereof and I having an annular seatiii itsouter face surrounding theopening therein, saidseat' being also provided with notches a'tapredetermined point therein, a locking 1 ring adapted to be seated inthe aforesaid annular seat, said locking ring bei'n'gprovided" with lugfor: engagement with any oneof the notches, and a key carr'ied'by saidkey-way" and operatively connected "with said locking ring to be movedthereby into and out of engagement'with the bolt threads.

3. 111 a device of theclass described, the combination with a bolt-yofaQnutj having a longitudinal key-Way intersecting the threads thereofand also provided with an annular seat in its outer face surrounding theopening-therein, .said seat being provided with a plurality of notchesat a predetermined point therein a locking key adapted to be introducedinto said keyway,- a split locking ring adapted to be seated-in theaforesaid seat of the nut, one end of the ring having aneccentric slotadapted'to receive one end of the keyy and a lug on said ring forengagement with any one of the notches to bring the key into engagementwith the bolt.

In testimony whereof'I aflixmy signature.

CHARLES; R. GONKLIN.

